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. 2019 Jun 24;19:56. doi: 10.1186/s12894-019-0486-0

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — A description of the surgical technique for performing EMR + en-bloc resection. a A snare is inserted at the base of the pedunculated tumor; b the snare is placed close to the bottom of the tumor, and EMR is performed; c a flat or residual tumor mass is shown; d a circular incision is created around the residual tumor, maintaining a distance of approximately 5–10 mm from the tumor edge; e en-bloc resection is performed, and f the tumor is completely resected. (EMR: endoscopic mucosal resection)